{"uid":"cap_JC-5olGbRBmCtAzSeBjnJ","slug":"soren-block-header-reader-74008be2","name":"Soren Block Header Reader","description":"Read a block header by number or the latest, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.","url":"https://soren.com/v1/chain/block","method":"GET","headers":{},"bodySchema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"number":{"type":"string","examples":["latest"],"description":"A block number, or latest. Default latest."}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_2LsPKD7JRqEstkN3lQC8x","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches a Base mainnet block header by block number or the latest block, live at call time, charged per successful read via x402.","exampleAgentPrompt":"Pull the latest block header from Base mainnet — I need the block number, hash, and timestamp right now.","exampleUseCases":[{"title":"Confirming current Base chain state","prompt":"What's the current block number and timestamp on Base mainnet? I need to verify the chain is live and moving."},{"title":"Retrieving a specific historical block","prompt":"Fetch the block header for block number 18500000 on Base mainnet — I need the hash and parent hash."},{"title":"Timestamping an event to a block","prompt":"Get me the latest Base mainnet block so I can record which block number and timestamp my agent's action happened at."}],"resultDescription":"Returns a block header object for the requested block (or latest), including fields such as block number, block hash, parent hash, timestamp, and related on-chain metadata, stamped with the block at the moment of the call. Returns data only on success; no charge if the read fails.","failureModes":["Invalid or out-of-range block number returns an error or not-found response","Network or RPC issues may cause call failure with no charge incurred","Malformed query parameter (non-numeric, non-'latest' value) may result in an error","Very recently produced blocks may have minor propagation delays"],"whenToPreferThis":"Use this endpoint when you need live, real-time Base mainnet block header data without setting up an API key or RPC provider account. Ideal for agents that need to pay-per-use at a fraction of a cent with no upfront commitment. Prefer the attested /v1/oracle/onchain endpoint when cryptographic proof of the read is required; use this endpoint for lightweight, unsigned block lookups.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:31:59.065Z","isFirstParty":false}